Laserfiche WebLink
� I <br />� I <br />I I <br />I I <br />Li <br />77-226 <br />Mr. Bob Mason -3- December 9, 1977 <br />B. RESULTS: <br />B.1. Lam: Soil strata encountered in the borings, penetra- <br />tion resistances, and water level observations are plotted <br />on the attached Log of Boring sheets. <br />B.2. Soils Encountered: <br />clay which is likely fill <br />beneath the sandy clay to <br />silty sandy clay till was <br />foot of black silty clay <br />Beneath the topsoil to th <br />sandy clay till was again <br />In boring ST-1, 2 feet of sandy <br />was initially encountered. From <br />the termination of the boring, <br />encountered. In boring ST-2, 1 <br />topsoil was initially encountered. <br />e termination of this boring, silty <br />encountered. <br />The standarL' ijunetration values (blows per foot, BPF) deter- <br />mined in t...: course of sampling the soils on site indicate <br />that the consistency of the till materials encountered in <br />both borings ranged from rather stiff to stiff in consistency. <br />C. ANALYSIS $ RECOMMENDATIONS: <br />C.1. Focting Elevations: According to information submitted <br />by Mr. Dan Korba of your firm, you anticipate construction <br />of a split-level style home with tuck -under garage for the <br />property. The footing at the rear of the home will be <br />placed approximately 3h feet below present grade. The <br />footing in front of the structure will be at or near present <br />ground surface. The front half of the proposed house will <br />be placed on from 0 to around S feet of structural fill. We <br />anticipate a maximum soil bearing pressure from the house <br />footings to be 2000 pounds per square foot. Based upon the <br />results of our boring program, and the information obtained <br />from your firm, the soils present at your site can adequately <br />support the footing and structural fill loads without settle- <br />ments detrimental to the proposed structure. <br />C.2. Site Preparation: We recommend that prior to construc- <br />tion of the proposed structural fill and footings, the <br />building area should be stripped of all vegetation, topsoils <br />and existing fill. Compaction of structural fill should be <br />observed and tested by a Soils Engineering firm. We recommend <br />that the fill be compacted to a minimum of 90% of modified <br />Proctor density (ASTM D1s57-70). <br />C.3. Cold Weather Construction: If site grading work and <br />1 construction of the house ootings is anticipated during <br />cold or inclement weather conditions, we recommend that good <br />winter construction practice be observed. No fill should be <br />placed upon soils which have frozen or contain frozen <br />materials. No soils containing frozen materials should be <br />placed. <br />BRAUR"' <br />ENGINEERING TESTING <br />